| 基于小波分析的海洋平台实时结构健康监测 |
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| 引用本文： | 李晔.基于小波分析的海洋平台实时结构健康监测[J].海洋工程,2016,34(5):131-136. |
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| 作者姓名： | 李晔 |
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| 作者单位： | 中国船级社 海工技术中心，天津 300457 |
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| 摘 要： | 由于海洋平台结构长期处于恶劣的海洋环境中,并受到各种载荷的交互作用,结构容易产生各种形式的损伤。因此,对海洋平台进行实时监测有着十分重要的现实意义。以单筒简易导管架平台为例,主要在结构损伤的判定和定位两方面对海洋平台的实时结构健康监测进行研究,结果表明通过对结构响应信号进行小波分析,小波变换系数和小波包能量分布可以很好地定义损伤识别指标。
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| 关 键 词： | 海洋平台 损伤识别 小波变换 小波包分解 |
On-line structural health monitoring of offshore structures based on wavelet analysis |
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| LI Ye.On-line structural health monitoring of offshore structures based on wavelet analysis[J].Ocean Engineering,2016,34(5):131-136. |
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| Authors: | LI Ye |
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| Institution: | China Classification Society Offshore Technology Center, Tianjin 300457, China |
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| Abstract: | Due to severe ocean environment, offshore structures are easy to be influenced or damaged by complex environmental loadings. Therefore, it is very important to implement on-line structural health monitoring for offshore structures. Taking a simple jacket platform as an example, this paper presents a study on damage detection and localization of offshore structures. By wavelet analysis of structural response data, it is shown that wavelet transform coefficients and wavelet packet energy can accurately detect damage conditions. |
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| Keywords: | offshore structure damage detection wavelet transform wavelet packet decomposition |
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